The best chairs ever designed?

Chairs: 1,000 Masterpieces of Modern Design, published by Goodman Fiell,
is a celebration of some of the most groundbreaking chair designs from 1800
to the present day. Here are 15 of the most innovative designs featured in
the book.

Josef Hoffman

The Sitzmaschine or "Sitting Machine", circa 1908, Austria

This adjustable chair by Austrian designer Josef Hoffman was based on an
earlier chair by Morris & Co. Unusually, this example has retained its
original horsehair cushions, which were designed by Hoffman and made by
Backhausen & Söhne in Vienna.